## Uses of Class
io.netty.handler.codec.mqtt.MqttMessageIdVariableHeader

### Uses of MqttMessageIdVariableHeader in io.netty.handler.codec.mqtt

Subclasses of MqttMessageIdVariableHeader in io.netty.handler.codec.mqtt
`class` `MqttMessageIdAndPropertiesVariableHeader` Variable Header containing, Packet Id and Properties as in MQTT v5 spec.
`class` `MqttPubReplyMessageVariableHeader` Variable Header containing Packet Id, reason code and Properties as in MQTT v5 spec.

Methods in io.netty.handler.codec.mqtt that return MqttMessageIdVariableHeader
`static MqttMessageIdVariableHeader` MqttMessageIdVariableHeader.`from(int messageId)`
`MqttMessageIdVariableHeader` MqttPubAckMessage.`variableHeader()`
`MqttMessageIdVariableHeader` MqttUnsubscribeMessage.`variableHeader()`
`MqttMessageIdVariableHeader` MqttUnsubAckMessage.`variableHeader()`
`MqttMessageIdVariableHeader` MqttSubscribeMessage.`variableHeader()`
`MqttMessageIdVariableHeader` MqttSubAckMessage.`variableHeader()`

Constructors in io.netty.handler.codec.mqtt with parameters of type MqttMessageIdVariableHeader
Constructor and Description
`MqttPubAckMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader)`
`MqttSubAckMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader, MqttSubAckPayload payload)`
`MqttSubscribeMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader, MqttSubscribePayload payload)`
`MqttUnsubAckMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader)`
`MqttUnsubAckMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader, MqttUnsubAckPayload payload)`
`MqttUnsubscribeMessage(MqttFixedHeader mqttFixedHeader, MqttMessageIdVariableHeader variableHeader, MqttUnsubscribePayload payload)`